$OpenBSD: patch-lib_krb5_krb5_h,v 1.2 2016/12/17 14:58:31 ajacoutot Exp $

cleanup 1 << 31 idioms

--- lib/krb5/krb5.h.orig	Tue Nov 29 02:35:27 2016
+++ lib/krb5/krb5.h	Thu Dec 15 11:29:38 2016
@@ -429,7 +429,7 @@ typedef union {
 #define KDC_OPT_RENEWABLE_OK		(1 << 27)
 #define KDC_OPT_ENC_TKT_IN_SKEY		(1 << 28)
 #define KDC_OPT_RENEW			(1 << 30)
-#define KDC_OPT_VALIDATE		(1 << 31)
+#define KDC_OPT_VALIDATE		(1U << 31)
 
 typedef union {
     KDCOptions b;
